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This kit tests tap water and aquarium water for five different parameters that affect the health of freshwater fish: pH, High Range pH, Ammonia, Nitrite and Nitrate. Highly accuate and economical. Unique, transparent dome allows clear view of contents. Includes all tests required to test the nitrogen cycle. Kit includes computer-calibrated and laminated color cards, 4 glass test tubes and holding tray. Also contains complete, step-by-step instruction booklet, including information on how to correct unsafe water conditions. Compact and easy to store. Over 800 tests.

This pricey, but (in my opinion) necessary test kit....is a "must have" for every fish keeper. These tests are very accurate and beat the pants off the test strips that I've used. Quick results and more than enough tests per bottle.

------------------------------*Keep Smiling, It Makes People Wonder What Your Up To*

I was using test strips before finally going out and buying this product. The price was a little shocking at first , but it pays for itself in accuracy. You get a lot of test out of it too, much more than test strips. This product is a must if you are cycling with fish, in my opinion. The only downside to the kit is the ammonia and nitrate tests have irritated my skin before.